21302321100012 has 24 divisors (see below), whose sum is σ = 55228239889200. Its totient is φ = 7100773699968.

The previous prime is 21302321099993. The next prime is 21302321100023. The reversal of 21302321100012 is 21000112320312.

21302321100012 is a `hidden beast` number, since 21 + 302 + 321 + 10 + 0 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98621856837 + ... + 98621857052.

It is an arithmetic number, because the mean of its divisors is an integer number (2301176662050).

Almost surely, 2^{21302321100012} is an apocalyptic number.

It is an amenable number.

21302321100012 is an abundant number, since it is smaller than the sum of its proper divisors (33925918789188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21302321100012 is a wasteful number, since it uses less digits than its factorization.

21302321100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197243713902 (or 197243713894 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21302321100012 its reverse (21000112320312), we get a palindrome (42302433420324).

The spelling of 21302321100012 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-one million, one hundred thousand, twelve".